PC card rugged interconnect

ABSTRACT

A ruggedized PCMCIA card (PC card) connection adapter device includes a rigid housing having a PC card interface assembly and a external component interface assembly. Each interface assembly extends through an associated exterior surface of the housing, and the assemblies are linked to allow transfer of input/output signals therebetween. The PC card interface assembly includes a linking member sized and shaped to fittingly engage the PC card socket of a host computer. A gasket member disposed on the linking member provides a seal between the PC card socket and the linking member when the connection adapter is in place. The connection adapter also includes a locking means by which the device may be selectively secured to a host computer.

FIELD OF THE INVENTION

This invention relates generally to the protection of PCMCIA-style cards (PC cards) and, in particular, to an interconnect device that provides an environmentally-sealed mechanically rugged interface and electrical signal conduit.

BACKGROUND OF THE INVENTION

The continuing evolution of computers has produced an increased demand for add-on accessories such as memory devices, modems, and the like. This need has, in turn, led to the introduction of credit-card sized devices made in accordance with standards developed by Personal Computer Memory Card International Association (PCMCIA). Adoption of this standard has allowed for the near universal adaptation of an interface through which the above-mentioned accessories may be attached.

Unfortunately, although these so-called PC cards may be readily attached, the sockets that physically permit such connections can often be the source of trouble: these sockets may allow water, dirt, or other unwanted contaminants to enter the computer. When a PC card is installed into a PC card socket, the exposed area around the PC card is typically large enough for dust, dirt, moisture, and the like contaminants to enter the computer. As a result, although many PC-card-using computers are portable enough for remote use, their susceptibility to damage from foreign material often dictates that these machines be used only in clean, office-like environments. This is troublesome because some computers, such as portable computers, are often useful in environments that are not especially computer-friendly. Portable computers, including handhelds, are powerful, adaptable tools that have found use in manufacturing facilities, construction job sites, and a wide variety of harsh environments.

Attempts have been made to provide protective devices for use with PC cards. For example, U.S. Pat. No. 5,575,670 discloses a protective sleeve designed to fit around a PC card and the receiving socket. Brushes inside the sleeve clean the inserted end of the PC card and prevent the entry of dust into the computer. Although the '670 device may help reduce unwanted contamination, such a device is not sufficient for many situations. Many PC cards have an exposed input/output port into which linking cables and external components are attached or exchanged after the PC card is installed. Thus, while the '670 device may protect the interface between the computer and an inserted PC card, the '670 device does not protect the PC card input/output port.

What is needed is a PC card interconnect device that protects PC cards while permitting necessary signal transfer connections to be made. The device should protect a computer PC card socket and a PC card inserted therein, while providing a weather-tight connection between the computer, the PC card, and external components connected to the PC card.

SUMMARY OF THE INVENTION

The instant invention is a connection adapter that allows environmentally-sealed mechanically rugged connections with the input/output port of a PC card used with a host computer such as a desktop, portable, handheld or the like computer. The connection adapter has a rigid housing that includes a PC card and an external component interface assembly. The interface assemblies are operatively linked, and each interface assembly extends through an associated exterior surface of the housing.

The PC card connection adapter includes a locking means by which the device may be selectively secured to a host computer and a linking member that engages a host computer PC card socket. The linking member is fitted with a gasket that seals the PC card socket against unwanted entry of water, dirt, and other contaminants. The PC card connection adapter includes a PC card input/output receptacle plug, such as an AMP connector, that engages the input/output port of a PC card installed within the PC card socket engaged by the linking member.

The external component interface assembly includes an element-resistant external component linking plug that permits a weather-tight connection between an external component and the adapter of the present invention. The external component linking plug is connected with the PC card input/output plug, thereby allowing transfer of signals therebetween.

The connection adapter may be selectively secured in place by various locking means. In one embodiment, the locking means employs hook-and-loop type fastening material. Alternatively, the device may also be held in place by a securing pin operatively associated with the housing of the computer. Alternatively, a threaded screw or even adhesive may be used as a locking means.

Upon installation, the present invention allows connection of external components to an installed PC card. In this situation, the device protects the installed PC card from contamination in harsh environments, while providing unimpeded operation of components attached to the PC card input/output port.

Thus, an objective of the present invention is to provide a ruggedized PC card interconnection device that protects an installed PC card and associated PC card socket from contamination in harsh environments, while allowing unimpeded connections of external components to the protected card.

An additional objective of the present invention is to provide a ruggedized PC card interconnection device that may be selectively locked in place with respect to a host computer.

A further objective of the present invention is to provide a ruggedized PC card interconnection device that allows removal of external components without subjecting a protected host computer to exposure from the elements.

Still another objective of the present invention is to provide a ruggedized PC card interconnection device that may be installed and removed without the need for special tools.

An additional objective of the present invention is to provide a ruggedized PC card interconnection device that protects a host computer PC card socket and a PC card inserted therein, while providing a weather-tight connection between the computer, the PC card, and external components connected to the PC card.

Other objectives and advantages of this invention will become apparent from the following description taken in conjunction with the accompanying drawings wherein are set forth, by way of illustration and example, certain embodiments of this invention. The drawings constitute a part of this specification and include exemplary embodiments of the present invention and illustrate various objectives and features thereof.

BRIEF DESCRIPTION OF THE FIGURES

FIG. 1 is an isometric view of the rugged PC card interconnect device of the present invention, shown in use with a host computer;

FIG. 2 is an isometric view of the rugged PC card interconnect device of the present invention, showing the included interface assemblies;

FIG. 3 is a side elevation view of the interconnect device shown in FIG. 1, with a hook-and-loop type material securing arrangement;

FIG. 4 is an isometric view of the interconnect device shown in FIG. 1, with a locking pin securing arrangement;

FIG. 5 is an isometric view of the interconnect device shown in FIG. 1, with a threaded screw securing arrangement; and

FIG. 6 is a pictorial view of the interconnect device shown in FIG. 1, shown secured to a host computer and connected to an external component.

DETAILED DESCRIPTION OF THE INVENTION

Although the invention will be described in terms of a specific embodiment, it will be readily apparent to those skilled in this art that various modifications, rearrangements and substitutions can be made without departing from the spirit of the invention. The scope of the invention is defined by the claims appended hereto.

Now with reference to FIGS. 1 and 2, the ruggedized PC card interconnect device 10 of the present invention is shown. By way of overview, the interconnect device 10 includes a rigid housing 12 having a card interface assembly 14 and a external component interface assembly 18. The card interface assembly 14 extends through a first exterior surface 16 of the housing 12, and the external component interface assembly 18 extends through a second exterior surface 20 thereof. The housing 12 is adapted for selective attachment to a host computer 22 and a PCMCIA (PC card) 24 inserted within a PC card 32 socket disposed therein. The device 10 also includes a locking means 26 for securing the housing 12 in place. The details of the device 10 will now be discussed.

With continued reference to FIG. 2, the rugged PC card interconnect device housing 12 is preferably a rectangular unit characterized by a PC card interface assembly 14 and a external component interface assembly 18, each extending through respective exterior surfaces 16,20 thereof. The card interface assembly 14 includes an oblong linking member 28 and a PC card input/output plug 30. In a preferred embodiment, the linking member 28 is a thin-walled, substantially-rectangular ring that extends orthogonally from the rigid housing 12. The linking member 28 is sized and shaped to fit within a PC card mounting socket 32 disposed within a host computer 22. The linking member 28 is preferably bounded by a sealing gasket 34 which ensures a snug, weather-tight fit between the linking member 28 and the PC card mounting socket 32. The PC card input/output plug 30 is shaped to engage the input/output port receptacle 36 of a PC card 24. In a preferred embodiment, the PC card input/output plug 30 is an AMP 15-pin connector. However, other configurations are possible; the PC card input/output plug 30 and linking member 28 configurations are determined by the PC card 24 and socket 32 with which the device 10 will interface.

With respect to FIGS. 3 and 6, the external component interface assembly 18 preferably includes an element-resistant plug 38 that permits a weather-tight mechanically rugged connection between a linking cable 40 and the present invention 10. In a preferred embodiment, the plug 38 is shaped to engage a cable end having a multi-pin receptacle interface. It is noted that other plug 38 interfaces could be adopted, with the configuration being determined by the linking cable 40 which will be connected to the plug and external component 42. In keeping with the objectives of the present invention, the external component interface assembly 18 may be selectively capped to keep dust, dirt, and other contaminants from collecting on the plug 38 itself. The element-resistant plug 38 is wired to the PC card input/output plug 30, to facilitate appropriate signal transfer therebetween.

In use, the rugged PC card interconnect device 10 of the present invention is secured against a host computer 22, with the PC card input/output plug 30 engaging the input/output port receptacle 36 of an installed PC card 24. As stated above, the card interface assembly 14 and sealing gasket 34 are shaped to snugly engage a host computer PC card mounting socket 32; however, the included locking means 26 may be used to further secure the device 10. In a preferred embodiment, the locking means 26 includes corresponding portions 44,44' of hook and loop fastening material disposed on mating surfaces of the rigid housing 12 and host computer 22. One suitable type of hook and loop fastening material is available under the trademark VELCRO. In an alternate embodiment, shown in FIG. 4, the device 10 may also be held in place by a locking pin 46 passing simultaneously through the device housing 12 and into a retention aperture 48 disposed within the host computer 22. The device 10 may, as shown in FIG. 5, also be secured in place via a cinching member, such as a threaded screw-type fastener 50 extending through the device housing 12 and into the host computer 22. Other securing arrangements may also suffice, with the computer case dictating the most appropriate arrangement. It is not necessary that the locking means 26 provide an element-tight seal between the device 10 and the computer 22; the linking member 28 and sealing gasket 34 cooperate to provide the seal necessary.

It is to be understood that while a certain form of the invention is illustrated, it is not to be limited to the specific form or arrangement of parts herein described and shown. It will be apparent to those skilled in the art that various changes may be made without departing from the scope of the invention and the invention is not to be considered limited to what is shown and described in the specification and drawings. 

What is claimed is:
 1. A computer interconnect device comprising:a rigid housing having a first and second interface; said first interface assembly extending through a first exterior surface of said rigid housing including a linking member sized to fittingly engage a PCMCIA card socket of a host computer; a gasket member operatively associated with said linking member, said gasket member being adapted to provide a seal between said linking member and said PCMCIA card socket; said second interface assembly extending through a second exterior surface of said rigid housing, said second interface assembly including an external component linking plug operatively connected with said PCMCIA card input/output plug.
 2. The computer interconnect device of claim 1, including a locking means for selectively securing said linking member within said PCMCIA card socket of said host computer.
 3. The computer interconnect device of claim 1 wherein said gasket and said external component linking plug are water/dust impermeable.
 4. The computer device interconnect of claim 2, in combination with said host computer, wherein said locking means includes:a first portion of hook-and-loop fastening material disposed on said housing; and a corresponding second portion of hook-and-loop fastening material disposed on said host computer, said second portion of hook-and-loop fastening material being positioned to engage said first portion of hook-and-loop fastening material when said housing is juxtaposed against said computer.
 5. The computer interconnect device of claim 2, in combination with said host computer, wherein said locking means includes:a first locking aperture disposed within said housing; a second locking aperture disposed within said host computer; and a cinching member adapted to simultaneously engage each of said locking apertures.
 6. The computer interconnect device of claim 2, in combination with said host computer, wherein said locking means is non permanently attaching adhesive.
 7. The computer interconnect device of claim 1, in combination with said host computer provides a mechanically rugged external component linking cable termination. 